IrIII/AuI and RhIII/AuI Heterobimetallic Complexes as Catalysts for the Coupling of Nitrobenzene and Benzylic Alcohol
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Other documents of the author: Böhmer, Maximilian; Kampert, Florian; Tan, Tristan; Guisado-Barrios, Gregorio; Peris, Eduardo; Hahn, Franz Ekkehardt
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comunitat-uji-handle2:10234/160292
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http://dx.doi.org/10.1021/acs.organomet.8b00642 |
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Title
IrIII/AuI and RhIII/AuI Heterobimetallic Complexes as Catalysts for the Coupling of Nitrobenzene and Benzylic AlcoholAuthor (s)
Date
2018Publisher
American Chemical SocietyISSN
1520-6041; 0276-7333Bibliographic citation
BÖHMER, Maximilian, et al. IrIII/AuI and RhIII/AuI Heterobimetallic Complexes as Catalysts for the Coupling of Nitrobenzene and Benzylic Alcohol. Organometallics, 2018, vol. 37, no 21, p. 4092-4099.Type
info:eu-repo/semantics/articlePublisher version
https://pubs.acs.org/doi/10.1021/acs.organomet.8b00642Version
info:eu-repo/semantics/publishedVersionAbstract
Two simple bisimidazolium salts derived from m- or
p-bisimidazolebenzenes have been used as ligand precursors for the
preparation of a series of heterobimetallic RhIII/AuI and IrIII/AuI
complexes. All complexes ... [+]
Two simple bisimidazolium salts derived from m- or
p-bisimidazolebenzenes have been used as ligand precursors for the
preparation of a series of heterobimetallic RhIII/AuI and IrIII/AuI
complexes. All complexes have been fully characterized, and the
molecular structures of selected derivatives have been determined by
X-ray diffraction studies. These analyses showed that, regardless of
the ligand used, the direct coordination environment of the metals is
composed of identical donors (MIII: CNHC, Cbenzene, η5
-Cp*, and I−;
AuI
: CNHC and I−) and is rather similar in the heterobimetallic
complexes. The catalytic activity of the heterobimetallic complexes in
the coupling of nitrobenzene with benzylic alcohol has been investigated. In all cases, the performance observed for the heterobimetallic complexes was superior to that shown by mixtures of homometallic MIII/AuI complexes, suggesting a cooperative effect between the
two metal centers. In addition and in spite of the similarity of the donor groups of the two bis-NHC ligands used, the slightly different
relative orientation of the two metals in the heterobimetallic complexes also plays a role in the catalytic conversion observed. [-]
Is part of
Organometallics 2018, 37.Investigation project
SFB 858 and IRTG 2027 ; IJCI-2015- 23407Rights
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